CXA2697ER

CXA2697ER 5-Channel 2-LD Driver for Optical Disc Drive Description The CXA2697ER is a laser driver IC corresponded to DVD ×12 and capable of driving two high output lasers (CD/DVD) for writable optical discs. Features CD write channel maximum drive current: 300mA (VCC = 3V, VCC_LD = 4.5V, VOP = 2.5V) CD total maximum drive current: 370mA (VCC = 3.3V, VCC_LD = 5V, VOP = 2.5V) DVD write channel maximum drive current: 270mA (VCC = 3V, VCC_LD = 4.5V, VOP = 3V) DVD total maximum drive current: 360mA (VCC = 3.3V, VCC_LD = 5V, VOP = 3V) Capable of generating five-value recording waveform through control of five channels Rise/Fall times = 1ns Read Channel: ×125 Write Channel: ×470 Read Channel has extensive low-noise design 1.5nA/√Hz (@20MHz, ILD = 35mA, Imod = 20mAp-p) High frequency modulator circuit Frequency variable range: 200 to 600MHz Modulator amplitude can be set separately for CD and DVD. DVD modulator amplitude switching function Timing input for generating recording waveform can be adapted to both differential input (LVDS) and single-end input (3.3V CMOS/TTL). Applications CD-R, CD-RW, DVD-R, DVD-RW, DVD+R/RW, DVD-ROM and DVD-RAM for high-speed writable optical disc drives Structure Bi-CMOS IC Preliminary 32 pin VQFN (Plastic) Absolute Maximum Ratings Supply voltage VCC 3.6 VCC_LD 5.5 Storage temperature Tstg –65 to +150 Allowable power dissipation TBD PD Operating Conditions Supply voltage V V °C mW VCC 3 to 3.6 VCC_LD 4.5 to 5.5 ...